ive played with spin & propeller chips. they're very powerful but very difficult to get going because the language is a bit, umm, arcane :) and you have to use the expander card to get any good game devthat's why i like the fuzebox so much. there's a lot more pixels available & the code is much easier to write because its in C. I'll have some basic game tutorials up soon. you can check out 'hello world' type stuff on the "Uze it!" page